April 11

In one of His Tablets, 'Abdu'l-Bahá, after stating that fasting consists of abstinence from food and drink, further indicates that smoking is a form of "drink." In Arabic the verb "drink" applies equally to smoking.

In the East, therefore, the friends abstain from smoking during the hours of fasting, and friends from the East living in the West do likewise. But, as stated in our letter to the National Assembly of New Zealand, this application of the divine law has not been extended to the friends in the West for the present, and therefore it should not be made an issue. 
- The Universal House of Justice  (From a letter dated March 15, 1972 to an individual believer; Developing Distinctive Baha'i Communities, NSA of USA, 1998 edition)